<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>

    </style>
</head>
<body>

    <div id="app">
        <p>{{count}}</p>
        <!-- 基本修改数据 可以直接操作数据 -->
        <button @click="count++"></button>
    </div>
    <script>
        const vm = new Vue({

            data(){
                return{
                    count: 0,
                }
            }

        })

        setTimeout(()=>{
            vm.$mount("#app")
        },500)
    </script>
</body>
</html>